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Discussion Starter #1 (Edited)
I'm considering buying a new Mazda 3 2.0 Petrol Sport Nav Fastback (UK model) which has the low profile tyres on 18" wheels. The updated Mazda 3 claims to have improved sound insulation. What do owners of the revised Mazda 3 think of the levels of road and engine noise? Has there been a significant improvement?

I found this recent UK report on Mazda road noise Does the new Mazda 3 suffer from road noise? | Ask Honest John | Honest John

Honest John is considered a reliable UK car review site without the German bias all too common on car review sites.
 

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Not an issue for me. I can't relate to pre-facelift but it's definitely a whole lot better than my '10 was. No complaints here.

Someone who comes from a higher end car or who regularly sits in higher end cars may have a different opinion, but this is an economy car after all - albeit a damn nice one.
 

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I can't compare to the old model but road noise at 80mph on the freeway does not seem to bother me at all.

I found that a lot of the so called road noise in my 2016 3 was caused by the cheap tires fitted by Mazda. New tires fixed almost all of that noise.
care to mention what replacement tires you used?
 

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Interesting. Looks very similar to OEM Dunlop 5000. Half of the asymmetrical pattern is almost identical. Surprised it's a lot more quiet. Maybe it's the rubber itself vs. the tread pattern?
 

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Can't comment about road noise in the 2017, but the 2016 both 2.0 and 2.5 have little to no engine noise except for the unpleasant "whirr" of the 2.5 if you rev it too much on takeoff. It's much more pleasant to have an exhaust growl on a little over rev like on the Miata, but I like not having the noise while cruising.

To me, road noise in the 3 is the same as what it was on the Jetta.

Ralph
 

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No engine noise I got the 2.5l is pretty quiet engine , I wish it had a little more engine noise all I here is road tire noise.
 

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Discussion Starter #10
Thanks for your replies. Owners of the 2017 Mazda 3 report no road/engine noise in the above posts yet I'm still reading conflicting car reviews - some say the Mazda 3 is a quiet refined car but others still mention excessive road noise in the 2017 model.

Are there any difference in road noise between the 16" and 18" wheels?
 

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... I'm still reading conflicting car reviews - some say the Mazda 3 is a quiet refined car but others still mention excessive road noise in the 2017 model.

Are there any difference in road noise between the 16" and 18" wheels?


Could you please post some reviewer comments stating a road noise issue in the '17s? I don't recall seeing any.

I have 18" wheels on my '17 GT and have amply tested the car at low and high speeds for up to eight hours at a stretch on concrete freeways, rough and potholed asphalt, etc.

This car has no excessive NHV issue.

What's keeping you from testing one yourself? Seems the most simple way to satisfy yourself.
 

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Discussion Starter #12
I'll find some reports and post the links. I have test driven the pre-facelift car and it was OK compared to my 2006 Accord which is fairly quiet. The problem with test drives is that you can only drive a few miles over few road types.
 

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Here's the most complete description I've found of the 2017 changes to benefit NHV, including:

• G-Vectoring Control (yes, for NHV!)
• Improved door weather strip design
• Tighter body panel gaps
• Thicker windshield glass
• Laminated front window glass (GT only)
• Dynamic dampers at rear trailing arms/crossmember
• Improved sound insulation

Mazda claims that the changes give an impressive 3 dB reduction in noise at 25 mph on rough roads.

http://www.autonews.com/article/201...fine-tuned-to-deliver-smoother-drive-handling
 

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I test driven both the 2016 and 17 back in November when I bought my 2017. on one specific test drive I took both cars on a rather lengthy test down the highway to the next town and back up via the side streets. Having driven one directly after the other I was able to notice a bit less noise (on the highway) with the 2017. This was one of the things (among others) I was specifically paying attention to and did my driving with the radio off just for this reason. And the 2017 I tested had 18" wheels and was a 2.5L while the 2016 had the 16" wheels and was a 2.0L. And even though the larger engine and larger wheels I felt the 2017 was indeed a bit less noisy. It was imo enough to notice and since it even had the larger wheels and engine (which should have made more noise.... it didint and actually sounded a tad better.

But a lot of this in general has to with the car one may be coming from. Its not a quiet vehicle especially when on cement highways. Much much quitter on asphalt highways but so is any car relatively speaking. Overall I find my 2017 less noisy than my 2010 hyundai elantra of which I drove for 150,000 miles so to me its an improvement. But is it less noisy than other new cars? I guess it depends on which car one has.

Many people have mentioned after changing tires they found things less noisy but imo as tires tend to wake up as they wear down it could just simply be a fresh set only sounds better than what the old worn set sounded like. Though some have reported changing tires quickly and noticing a sound sifference so there may be something to it. I will find that out when my time for tire change comes.

Another thing I find somewhat over the top about road noise is that I often think (or ask) what kind of car are we buying here. We are not in a top end car here but are in a compact economy car class. I don't really know what people really expect. This car also imo may be a victim of its own success..lol but here is what I mean. The interior of the 3 is nice and especially with the leatherette and leather. Its simply a nice place to be for a car in this class and feels somewhat elevated for the class. That elevated feeling of comfort and/or pleasantry can work to create a raised level of expectations for quietness. Its quite possible that because we may feel as though sitting in a bit of a higher end vehicle that we then expect the same with noise.

In the end I feel the car does have more noise than I would like it to have while on a cement highway but I also feel its better than my last commuter and is an improvement. So a lot of this is going to come down to what one has been driving prior and also what we should expect from this class of car. If I wanted more quiet I would have bought a higher class of vehicle. something I wouldn't do for my commuter. But I can say one thing for certain, its pleasant to be in this car and even greater to drive it :) and it has in many other ways surpassed my expectations for a compact economy class car.
 

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I did 1000 miles (San Diego to Phoenix, RT) in my '17 GT. It was quiet and relaxing. No perceptible wind noise, no unpleasant tire noise. All good.

People have ridden with me for several hours at a time, and routinely comment about how quiet the cabin is. Just heard such a comment last week from a Lexus sedan owner during a 5-hour drive to/from LA in my 3.
 

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Here is one report criticising noise levels in the 2017 model.

"Road noise is excessive, slush strikes the undercarriage like thunder, the driver's armrest is too uselessly positioned to be useful, rear ingress is awkward, the plasticky head-up display is an afterthought, the cabin took forever to warm up on 0°C mornings, the 2.5L doesn't feel much quicker than the 2.0L, fuel economy is unimpressive, and the price tag is lofty."


Seems that the reporter must either have hemorrhoids, a bad marriage, or both.
 

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Discussion Starter #18
"Road noise is excessive, slush strikes the undercarriage like thunder, the driver's armrest is too uselessly positioned to be useful, rear ingress is awkward, the plasticky head-up display is an afterthought, the cabin took forever to warm up on 0°C mornings, the 2.5L doesn't feel much quicker than the 2.0L, fuel economy is unimpressive, and the price tag is lofty."


Seems that the reporter must either have hemorrhoids, a bad marriage, or both.
I think he may belong the the large contingent of motoring journalists who prefer unreliable German cars - maybe they are paid by VW for these stories?
 

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I remember watching a youtube review on the 2017 model and the reviewer said he didn't notice much difference between that and the pre-facelift one. My coworker has a 2017 model and she drove me and another coworker to lunch and it was not much quieter than mine as I still hear a lot of wind noise at freeway speeds. Hopefully the 4th gen will be much better improvement in the road/wind noise department.
 

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Discussion Starter #20
I remember watching a youtube review on the 2017 model and the reviewer said he didn't notice much difference between that and the pre-facelift one. My coworker has a 2017 model and she drove me and another coworker to lunch and it was not much quieter than mine as I still hear a lot of wind noise at freeway speeds. Hopefully the 4th gen will be much better improvement in the road/wind noise department.
You say the wind noise shows no improvement but do you think the level of road noise has been improved which I find more annoying?
 
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